I had a similar experience at the TPS SAN a couple of years ago, I got an email or phone call a day or two before that they would not have electricity from 2200 - 0800 the next day. Other hotels with shuttles were easily twice as expensive (or twice as many points - I think this was an award stay). She said if I wanted to stay anyway, they would give me points, and I think I received just under half of the points back after I checked in as compensation.

Luckily I was able to function using a couple of power banks and took calls from my phone instead of my computer. I suppose in my particular instance if there were no hot water, I could heat up water on the stove since it was a TPS and the room had a kitchen (and I could light the stove with a match if needed). At a Courtyard in central Texas, however, I'd probably be asking them to assist with an alternate booking.

-J.